How to grow a human

After seeing his own cells used to grow clumps of new neurons that assembled themselves into a ‘mini-brain’ in a dish, Philip Ball began to examine the concept of identity and how it is rooted in our flesh and cells. Join Philip as he discusses the new technologies of cell reprogramming that were used to make his "brain in a dish", and how these reveal the astonishing plasticity of our flesh, enabling one body part (or perhaps an entire body?) to be grown from a scraping of another. Whether or not these methods will indeed lead to new ways to 'grow a human', they already raise profound questions about who we are and how we came into being.